Trying to jog my memory, but my recollection of the Acurus was that it had a rather low input impedance which might be a concern with some tube pres. The sound of the Acurus amps as I recall, had bass that competed with much more expensive offerings, but alas the upper range was quite chalky. That chalkiness might(?) be alleviated with a tube pre such as your Musical Design SP 2B (which I have no experience with), but otherwise IME would not mate well with the Thiels. A 12 X 12 room can be quite challenging as well. Good luck.
Small vinyl system..Thiel, Musical Design preamp, + ? Acurus amp?
So I have the bug again of system building...
Small vinyl 2.1 system in my reading room, 12 x 12
Trying to utilize my Musical Design preamp I've had in box for 15 years
AT 120 turntable
Thiel 1.2 speakers
PSB sub...
Music Design SP 2B tube preamp
?
Acurus A250 amp , used. <<<<<<<. questionable to drive Thiels
Can be had for $400-500 used, and want to stay on this area.
My concern is matching preamp to a power amp.
Small vinyl 2.1 system in my reading room, 12 x 12
Trying to utilize my Musical Design preamp I've had in box for 15 years
AT 120 turntable
Thiel 1.2 speakers
PSB sub...
Music Design SP 2B tube preamp
?
Acurus A250 amp , used. <<<<<<<. questionable to drive Thiels
Can be had for $400-500 used, and want to stay on this area.
My concern is matching preamp to a power amp.